<!doctype html> 
<html> 
<head> 
    <meta charset="utf-8"> 
    <title></title> 
</head>
<body>

<script type="text/javascript">

var a = function(){
	//new Object
	//alert(this)
	/*
	this.c = 10;
	this.b = function(){
		alert(this.c);
	}
	*/
	//return //new Object
}
alert(new a());
//new a().b();

//a();
//alert(typeof a);

</script>
</body>
</html>